Complaint
STWD8029 is a two-component high performance anticorrosion decoration UV resistance topcoat, it applies with aliphatic polyaspartic resin prepolymer as main film-forming material, it has excellent property of discoloration resistance and weather resistance.
Features and benefits
* the coating film is tough, compact, full light and with bright colors
* no discoloration, no-yellowing, no chalking, anti-aging, with excellent weather resistance and color-preserving decoration effect
* excellent adhesive strength, good compatible with polyurethane, epoxy, chlorinated rubber, alkyd, phenolic and other coating film.
* excellent abrasion resistance, impact resistance
* excellent chemical resistance to acid, alkali, salt and others.
* excellent anticorrosion property
* excellent waterproof property
* excellent durability to reduce lifelong maintenance cost
* extend the service life of the sprayed structure
Application scopes
Anticorrosion protective decoration of various reinforced concrete surface and metal structures, also work as topcoat on aromatic polyurethane and polyurea coating surface.
Product information
| Item | A component | B component |
| Appearance | light yellow liquid | Color adjustable |
| Specific gravity(g/m³) | 1.05 | 1.32 |
| Viscosity (cps)@25ºC | 350 | 320 |
| Solid content (%) | 56 | 85 |
| Mix ratio (by weight) | 1 | 1 |
| Surface dry time (h) | 1-3 h | |
| Recoating interval (h) | Min 3 h; max 24h (20ºC) | |
| Theoretical coverage (DFT) | 0.10kg/m2 film thickness 60μm | |
| Item | Test standard | Results |
| Tensile strength(Mpa) | ASTM D-412 | 17 |
| Elongation rate(%) | ASTM D-412 | 300 |
| Abrasion resistance (750g/500r) mg | HG/T 3831-2006 | 5 |
| Impact resistance kg·cm | GB/T 1732 | 50 |
| Anti-aging, accelerated aging 1000h | GB/T14522-1993 | Loss of light<1, chalking <1 |
| The product meets the standard of drinking water materials | GB/T17219-1998 | Pass |
| Acid resistance 10%H2SO4 or 10%HCI, 240h | no rust, no bubbles, no peel off |
| Alkali resistance 5%NaOH, 240h | no rust, no bubbles, no peel off |
| Salt resistance 30g/L, 240h | no rust, no bubbles, no peel off |
| Salt spray resistance 1500h | no rust, no bubbles, no peel off |
| Oil resistance, 0# diesel, cru de oil | no rust, no bubbles, no peel off |
| Waterproof, 48h | No bubbles, no wrinkled, no color-changing, no peel off |
| (For reference: pay attention to the influence of ventilation, splash and spillage. Independent immersion testing is recommended if requires other specific data.) | |
| environment temperature | -5~+35ºC |
| humidity | ≤85% |
| dew point | ≥3ºC |
Application instructions
Hand brush, roller
Air spray, with air pressure 0.3-0.5Mpa
Airless spray, with spray pressure 15-20Mpa
Recommend dft: 30-60μm
Recoating interval: ≥3h
Application tips
Agitate part B uniform prior to application.
Strictly mix the 2 parts in right ratio and agitate uniform.
Seal the package well after use to avoid moisture absorption.
Keep the application site clean and dry, forbidden to contact with water, alcohols, acids, alkali etc
